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authorEric Andersen <andersen@codepoet.org>2000-10-07 01:53:34 +0000
committerEric Andersen <andersen@codepoet.org>2000-10-07 01:53:34 +0000
commit04bc82edc59fed897b7f38e5f68a76402f087dfb (patch)
tree005053903ad4ccb798e8a111747fd3dcd8cbc70b /libc/sysdeps/linux/i386/bits/ipc.h
parent19cf2f446177ebf7c0b569f908696d6ac318d0ac (diff)
Add in support for shm/ipc.
Diffstat (limited to 'libc/sysdeps/linux/i386/bits/ipc.h')
-rw-r--r--libc/sysdeps/linux/i386/bits/ipc.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/i386/bits/ipc.h b/libc/sysdeps/linux/i386/bits/ipc.h
new file mode 100644
index 000000000..c4e37358e
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/ipc.h
@@ -0,0 +1,50 @@
+/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _SYS_IPC_H
+# error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
+#endif
+
+#include <sys/types.h>
+
+/* Mode bits for `msgget', `semget', and `shmget'. */
+#define IPC_CREAT 01000 /* Create key if key does not exist. */
+#define IPC_EXCL 02000 /* Fail if key exists. */
+#define IPC_NOWAIT 04000 /* Return error on wait. */
+
+/* Control commands for `msgctl', `semctl', and `shmctl'. */
+#define IPC_RMID 0 /* Remove identifier. */
+#define IPC_SET 1 /* Set `ipc_perm' options. */
+#define IPC_STAT 2 /* Get `ipc_perm' options. */
+#define IPC_INFO 3 /* See ipcs. */
+
+/* Special key values. */
+#define IPC_PRIVATE ((__key_t) 0) /* Private key. */
+
+
+/* Data structure used to pass permission information to IPC operations. */
+struct ipc_perm
+ {
+ __key_t __key; /* Key. */
+ unsigned short int uid; /* Owner's user ID. */
+ unsigned short int gid; /* Owner's group ID. */
+ unsigned short int cuid; /* Creator's user ID. */
+ unsigned short int cgid; /* Creator's group ID. */
+ unsigned short int mode; /* Read/write permission. */
+ unsigned short int __seq; /* Sequence number. */
+ };